JEE Main 2022 (Online) 28th July Morning Shift | Surface Chemistry Question 30 | Chemistry

This chapter is currently out of syllabus

JEE Main 2022 (Online) 28th July Morning Shift

MCQ (Single Correct Answer)

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Out of Syllabus

Match List - I with List - II.

	List - I Reaction		List - II Catalyst
(A)	$$4N{H_3}(g) + 5{O_2}(g) \to 4NO(g) + 6{H_2}O(g)$$	(I)	$$NO(g)$$
(B)	$${N_2}(g) + 3{H_2}(g) \to 2N{H_3}(g)$$	(II)	$${H_2}S{O_4}(l)$$
(C)	$${C_{12}}{H_{22}}{O_{11}}(aq) + {H_2}O(l) \to \mathop {{C_6}{H_{12}}{O_6}}\limits_{Glu\cos e} + \mathop {{C_6}{H_{12}}{O_6}}\limits_{Fructose} $$	(III)	$$Pt(s)$$
(D)	$$2S{O_2}(g) + {O_2}(g) \to 2S{O_3}(g)$$	(IV)	$$Fe(s)$$

Choose the correct answer from the options given below :

$$(\mathrm{A})-(\mathrm{II}),(\mathrm{B})-(\mathrm{III}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})$$

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{II}),(\mathrm{C})-(\mathrm{I}),(\mathrm{D})-(\mathrm{IV})$$

$$(\mathrm{A})-(\mathrm{III}),(\mathrm{B})-(\mathrm{IV}),(\mathrm{C})-(\mathrm{II}),(\mathrm{D})-(\mathrm{I})$$

(A) - (III), (B) - (II), (C) - (IV), (D) - (I)

JEE Main 2022 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

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Out of Syllabus

Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Dissolved substances can be removed from a colloidal solution by diffusion through a parchment paper.

Reason (R) : Particles in a true solution cannot pass through parchment paper but the colloidal particles can pass through the parchment paper.

In the light of the above statements, choose the correct answer from the options given below :

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

(A) is correct but (R) is not correct

(A) is not correct but (R) is correct

JEE Main 2022 (Online) 26th July Evening Shift

MCQ (Single Correct Answer)

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Out of Syllabus

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Finest gold is red in colour, as the size of the particles increases, it appears purple then blue and finally gold.

Reason R : The colour of the colloidal solution depends on the wavelength of light scattered by the dispersed particles.

In the light of the above statements, choose the most appropriate answer from the options given below.

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is NOT the correct explanation of A.

A is true but R is false.

A is false but R is true.

JEE Main 2022 (Online) 25th July Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

For micelle formation, which of the following statements are correct?

A. Micelle formation is an exothermic process.

B. Micelle formation is an endothermic process.

C. The entropy change is positive.

D. The entropy change is negative.

A and D only

A and C only

B and C only

B and D only

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